Siberian sturgeon
📖 Overview
Found in deep and shallow parts of rivers, with moderate to swift current usually at depths of 1 to 8 m . Adults live essentially in freshwater although some fish frequently occur in estuaries. Males are sexually mature between 9 and 29 years; females between 9 and 34 years . Spawn in main river channel over stone-gravel or gravel-sand bottom and with strong current .
🔬 Taxonomy
🐟 Physical Description
Extended snouts; four barbels in front of the mouth . The back is light grey to dark brown colored. The belly color varies from white to clear yellow. Five row s of scutes: 10-19D, 32-59L, 7-16V. Small star-like scutes between the main ones. Clearly slit inferior lip .: elongated.
🌀 Behaviour
Behavioural data for Siberian sturgeon is currently being reviewed.
🦐 Diet
Diet information for Siberian sturgeon is currently being compiled.
🥚 Reproduction
Potamodromous species . In a natural environment, males reach sexual maturity at 9-1 5 years of age and females at 16-20 years (in water recirculation systems, sexual maturity can first occur at 5 years). Spawning happens in the summer and generally every two years. Membranes on eggs become increasingly more sticky after fertilization and this allows them to stick to the substratum. This can become a problem in nurseries, but it is solved by washing the eggs in clay or diatomaceous earth suspensions. Caviar (not fecundated ovocites ) can be over 1 0% of the corporal weight of a mature female. Incubation lasts about 1 6 days (at 10-1 5°). Larval development lasts about 20 days (at 18°). Egg size 3.0-3.6 mm, larval length at hatching 10-12 mm.
🌍 Habitat & Distribution
Freshwater; brackish; demersal; pH range: 7.0 - 7.5; dH range: ? - 20; potamodromous ; depth range 0 - 200 m , usually 1 - 8 m . Temperate; 1°C - 19°C ; 74°N - 46°N, 64°E - 162°E
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🌐 Names & Taxonomy
| Language | Common Names |
|---|---|
| 🇬🇧English | Siberian sturgeon |
| 🇩🇰Danish | Sibirisk stør |
| 🇩🇪German | Sibirischer Stör |
| 🌍ELL | Οξύρρυγχος Σιβηρίας |
| 🇫🇮Finnish | siperiansampi |
| 🇫🇷French | Esturgeon sibérien, Esturgeon de Sibérie · esturgeon de Sibérie |
| 🇮🇹Italian | storione Siberiano |
| 🌍LIT | Sibirinis eršketas |
| 🇳🇱Dutch | Siberische steur |
| 🇵🇱Polish | jesiotr Syberyjski |
| 🇷🇺Russian | западносибирский · обский · сибирский осетр |
| 🌍SLV | Sibirski jeseter |
| 🇪🇸Spanish | esturión Siberiano |
| 🇸🇪Swedish | sibirisk stör |
| 🌍TUR | Sibirya mersin balığı |
| 🌍UKR | Осетер сибірський · Сибірський осетер |
Scientific Synonyms
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Acipenser baeri baicalensis | Nikolskii | 1896 | Synonym |
| Acipenser baeri chatys | Dryagin | 1948 | Synonym |
| Acipenser baeri stenorrhynchus | Nikolskii | 1896 | Synonym |
| Acipenser baerii baerii | - | - | Synonym |
| Acipenser baerii baikalensis | Nikolskii | 1896 | Synonym |
| Acipenser baieri | Brandt | 1869 | Synonym |
| Acipenser stenorrhynchus | Nikolskii | 1896 | Synonym |
| Acipenser stenorrhynchus baicalensis | Nikolskii | 1896 | Synonym |
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 2 records indexed .
👥 Community & Contribute
No observations yet - be the first to log one!
View all observations for Siberian sturgeon ↗Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.
Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.